Strap for Modello Uno U1-NRN Norwegian Rain

The lug width of the Modello Uno U1-NRN is 22 millimetres. This measurement is the fundamental parameter for compatibility between the case and the strap: it represents the distance between the two metal suspension lugs. Always measure with a digital calliper, ensuring that the movement is secure and free from dirt at contact points.

The choice depends on intended use and desired aesthetics. For those seeking durability over time and natural ageing, an alligator leather with vegetable tanning offers visible patina and decade-long longevity. For absolute versatility, a dense NATO strap allows instant interchange without tools. For marine environments, naturally vulcanised rubber guarantees complete water resistance. Cognac-coloured calf leather represents the elegant compromise between minimal maintenance and refined appearance.

If your strap features a steel deployant clasp, open the locking mechanism by pressing the side button and slide it from the lug. Next, use a spring bar tool (a specialised implement with a double point) to push the suspension pin downward and release the strap from the case. Insert the new strap by aligning its hole with the pin, reposition the spring and verify that it locks properly. If using a NATO strap, simply slide the old one out from the lugs and insert the new one in seconds, without any tools.

Yes, any strap with a 22mm lug width is compatible. Always verify that the internal width, measured between the two lugs, matches exactly 22 millimetres. Artisanal leather straps, made from superior-quality hides (alligator, calf, shell cordovan with vegetable tanning), and dense NATO textiles ensure superior resistance and controlled ageing compared to standard industrial products.

Lifespan varies depending on the material and environment of use. Vegetable-tanned alligator, worn daily under normal conditions, resists 5–7 years before binding replacement is necessary. Calf leather, being less dense, has an average lifespan of 3–5 years. Shell cordovan, thanks to the derma's density, easily exceeds 10 years. Prolonged exposure to humidity, salt perspiration or direct sunlight reduces these timeframes. However, the natural patina that develops is evidence of genuine durability, not deterioration.